Starch Ether

Product Name:

Hydroxypropyl Starch Ether (HPS)

Description:

Hydroxypropyl Starch Ether (HPS) is a modified starch derived from natural starch through an etherification process. It appears as a white or beige powder and is soluble in cold water, forming a transparent or translucent viscous liquid. HPS is widely utilized in the construction industry to enhance the performance of cement- and gypsum-based materials. Beyond construction, it serves as a thickener, stabilizer, and adhesive in the food, paper, and textile industries.

Physical Properties:

Appearance: White or beige powder
Solubility: Soluble in cold water
Moisture Content: ≤ 12%
pH Value: 5-11 (1% solution)

Chemical Properties:

Chemical Nature: Polysaccharide with ether bonds
Stability: Stable in neutral and alkaline conditions
Compatibility: Compatible with cellulose ethers, surfactants, and other additives

Key Features:

Excellent thickening, water retention, and adhesion properties
Enhances workability and sag resistance in construction materials
Reduces slip and improves adhesion in tile adhesives
Biodegradable and environmentally friendly

Applications:

Construction Industry:

Mortar and Plaster: Improves consistency, workability, and water retention
Tile Adhesives: Enhances adhesion and reduces slip
Self-Leveling Compounds: Prevents delamination and improves flow
Spray Mortars: Enhances rheology and stability

Food Industry:

Acts as a thickener, stabilizer, and adhesive in various food products

Paper Industry:

Used for internal and surface sizing to improve paper smoothness and reduce ink consumption

Textile Industry:

Applied as a warp size to enhance abrasion resistance and weaving efficiency

Recommended Usage:

In Construction Materials: 0.01% to 0.1% by weight of the total dry mix
With Cellulose Ethers: Can reduce cellulose ether requirement by 20-30% when used in combination